Safety attachment for elevators



(No Model.)

Patented Mar. 2, 188 6.

WITNESSES N. PETERS, Pholo blhognphon Washington, D. C.

- STATES PATENT FFlCFa HIRAM R. FEBRIS, OF CLEVELAND, OHIO.

SAFETY ATTACHMENT F OR ELEVATORS.

EPE'C'IFICATION forming part of Letters Patent No. 337,317, dated March2, 1886.

Application filed January 6, 1886. Serial No. 187,196. (No model.)

To all whom iamay concern:

. Be it known that I, HIRAM B. FERRIs,of Cleveland, in the county'ofOuyahoga and State of Ohio, have invented certain new and usefulImprovements in Safety Attachments for Elevators; and I do herebydeclarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to'make and use the same.

My invention relates to improvements in safety attachments for elevatorsin which one or more bars, slats, or rods are suspended from eachhatchway, so as to eng ige anything projecting beyond theelevator-platform when the elevator is ascending. The bars, slats, orrodsare supported by leverslarranged substantially like what is known asa parallel ruler, so that the bars, slats, or rods may move upward. Thebar, slat, or rod, or system of bars, slats, or rods suspended from eachhatchway is connected with a vertical rod, cord, or cable, as the casemay be, leading from top to bottom of the elevator-shaft, the latterbeing connected with levers 'ar-.. ranged to form a knuckle-joint, byoperating which a suspended weight is'released, said weight having acord attachment that is connected with the shifting-cable of theelevator,.

so arranged that the descent of the weight elevates the shitting-cableand stops the upward movement of the elevator, the object being tosimplify the construction, to increase the eiiiciency and durability,and lessen the initial cost of this class of elevator attachments. lViththese object'sin View my invention consists in certain features ofconstruction and in combination of parts hereinafter described,andpointed out in the claims.

In the accompanying drawings, Figure l'is a side elevation showing thesuspendedweight and the attachment for operating the sanie.

Fig. 2 is a side elevation through'the parallel rod suspended from ahatchway. Fig. 3 is an enlarged elevation of the'suspended weight andlevers for operating the same. 4 is an enlarged elevation showing amodification of the suspended weight and attachments.

A. represents the floors with hatchways A, through which theelevatorplatform (not shown) passes. On the front side-that is,

the side where freight or passengers are received or discharged-andunder each hatchway is arranged a bar, rod, or slat, B, that is pivotedto the levers 0, the levers in turn being pivoted at e to the hangers D.Light chains E are secured to the lower side of the hatchway and to thebar B; These chains are of equal length, and are distributed at suitableintervals along the bar B-for instance, as shown in Fig. 2. These chainsform stops that limit the depression of the bar B to'about ten inches(more or less) below the bottom of the hatchway, and the arrangement ofparts is such that, with the'bar B depressed, the levers G are inclinedin the same direct-ion, as shown. The bar B is arranged flush with theface of the hatchway, so that when the ele-' I vator is ascendinganything on the elevator that would clear the bar B will also clear thevface of the hatchway If anything projected beyond the elevator-platformso as to come,

under the bar B, the latter would be carried up substantiallyin themanner that parallel rulers are closed. Rods b are passed through thelinks of the chains E, and on the face-that is, the side next theelevator-platform-is secured a cloth screen, or netting of suitablematerial, that will fold easily as the system of bars or rods iselevated, by means of which cloth or screen small articles or the toe ofthe foot cannot 'be thrust outward under the hatchway after havingpassed above the bar B.

By means of suitable mechanism, next de-' raised the rod F will be drawnupward. At some convenient place, which may be anywhere along the lineof the elevator from eeli,

lar to garret, a weight, G, is arranged in a:-

box or casing, G, with a cord, 9, secured to the weight and leading overa pulley,g, and from thence downward a suitable distance, and isattached to the shifting-cable H, for instance, at h.

In Figs. 1 and 3 the cord g is shown attached near the left-hand side ofthe weight, so that 5 if the weight were drawn up by the cord the lowerend of the weight would by gravity incline to the left hand, so as torest on the slight shelf, ledge, or projection I, in which elevatedposition of the weight there is slack no enough in the cord g to leavethe shifting-cable H free to be operated in the usual manner. When theweight is pushed off of the shelf 1, in its descent it draws on the cordand the latter draws up on the cable H, the length of 1 the cord g beingsuch that when the weight strikes the bottom of the casing the cable isdrawn up to the point that stops the elevator in its ascent. Alever, J,is pivoted atj and jointed to the lever K, and at the joint these leversare connected in any suitable manner with the rod F. A weight, J, isarranged to more or less counterbalance the weight of the rod. -When theknuckle-joint formed by the levers J and K is bent downward, as shown inFig. 1, the outer end of the lever K rests against the side of theweight G. Now, when a 'bar B is elevated, causing, as aforesaid, the rodF to be elevated, the knucklejoint is raised or straightened, so thatthe lever K pushes the weight G off the shelf I, when, by means of thedescending weight, the shifting cable is drawn up and the elevatorstopped. After the elevator has been thus stopped and the projectedobstruction removed, the weight G is drawn up by hand or other means,and madeto rest on the shelf I, and the knuckle-joint is again adjuste'd, as shown in Figs. 1 and 3, after which the elevator is incondition to run.

In Fig. 4 is shown a modification where a o sloping shelf, ledge, orprojection, I, engages a correspondingly-beveled lower edge of theweight, and the knucklejoint is set in a straight line to hold theweight on the shelves or ledge. \Vith such construction, when the 5 rodF is elevated, it draws the knuckle-joint upward and releases theweight, so that the latter slides off of the shelf.

It will be observed that I use no springcatches or any mechanism that isliable to ,0 break or become disarranged from wear or accident.

' A rubber block, G", is attached to the bottom of the weight G tocushion the same when it'descends to the bottom of the casing. 5 \Vh'atI claim is- 1. In a safety attachment for elevators, the combination,with a hatchway, of a bar, slat, or suitable device held suspended underthe hatchway and parallel and flush with the face 0 of the latter, saidbar or slat being pivoted to inclined levers that operate in the sameplane with the said bar or slat, said levers inolining in the samedirection, substantially as setforth.

2. In a safety attachment for elevators, 6 5

described, of chains secured to the hatchway and to the suspended bar tolimit the depression of the latter, substantially as set forth.

3. In a safety attachment for elevators, the combination, with ahatchway, and a bar or suitable device pivoted to inclined levers andheld suspended under the hatchway, with chains to limit the depressionof the suspended bar, of rods inserted in the links of said chains, theparts being arranged substantially as set forth.

4. In a safety attachment for elevators, the combination, with ahatchway, a suspended bar, inclined lever, chains, and rods secured insaid chains, substantially as described, of a cloth screen, netting, orsuitable flexible dc vice arranged to extend on the face of such bars,rods, and chains, so as to fold with the same, substantially as setforth.

5. Ina safety attachment for elevators, the combination, with ahatchway, a suspended bar, and inclined levers arranged substantially asdescribed, of a cloth or suitable flexible material secured to thehatchway and to the suspended bar, so as to fold when the latter iselevated, substantially as set forth.

6. Ina safety attachment for elevators, the combination, with ahatchway, and a bar or suitable device held suspended under thehatchway,of a cloth or suitable flexible material secured to the suspended bar,so as to close the opening between the bar and hatchway, said clothbeing arranged to fold when the bar is elevated, substantially as setforth. 7

7. In a' safety attachment for elevators, the combination, with a weightfor reversing the shifting-cable to stop the ascent of the elevator, ofa shelf, ledge, or projection for en gaging the weightand holding thelatter elevated and inoperative, and suitable mechanism forautomatically disengaging the weight from such shelf, ledge, orprojection, substantially as set forth.

8. In a safety attachment for elevators, the combination, with a weightfor reversing the shifting-cable, and a shelf, ledge, or projection forholding the weight elevated and inoperative, of levers forming so-calledknucklejoints, arranged for disengaging the weights from such shelf,ledge, or projection, the parts being arranged substantially as setforth.

In testimony whereof I sign this specification, in the presence of twowitnesses, this 28d day of December, 1885.

ses age.

ALBERT E. LYNCH.

